#!/bin/bash

# Slackware build script for chameleon

# Copyright 2022 William PC - Seattle, USA
# All rights reserved.
#
# Redistribution and use of this script, with or without modification, is
# permitted provided that the following conditions are met:
#
# 1. Redistributions of this script must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
#
#  THIS SOFTWARE IS PROVIDED BY THE AUTHOR "AS IS" AND ANY EXPRESS OR IMPLIED
#  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
#  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO
#  EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
#  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
#  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
#  OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
#  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
#  OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
#  ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

cd $(dirname $0) ; CWD=$(pwd)

PRGNAM=chameleon
VERSION=${VERSION:-1.1.0}
BUILD=${BUILD:-1}
TAG=${TAG:-_SBo}
PKGTYPE=${PKGTYPE:-tgz}

if [ -z "$ARCH" ]; then
  case "$( uname -m )" in
    i?86) ARCH=i586 ;;
    arm*) ARCH=arm ;;
       *) ARCH=$( uname -m ) ;;
  esac
fi

# If the variable PRINT_PACKAGE_NAME is set, then this script will report what
# the name of the created package would be, and then exit. This information
# could be useful to other scripts.
if [ ! -z "${PRINT_PACKAGE_NAME}" ]; then
  echo "$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.$PKGTYPE"
  exit 0
fi

TMP=${TMP:-/tmp/SBo}
PKG=$TMP/package-$PRGNAM
OUTPUT=${OUTPUT:-/tmp}

if [ "$ARCH" = "i586" ]; then
  SLKCFLAGS="-O2 -march=i586 -mtune=i686"
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "i686" ]; then
  SLKCFLAGS="-O2 -march=i686 -mtune=i686"
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "x86_64" ]; then
  SLKCFLAGS="-O2 -fPIC"
  LIBDIRSUFFIX="64"
else
  SLKCFLAGS="-O2"
  LIBDIRSUFFIX=""
fi

set -e

rm -rf $PKG
mkdir -p $TMP $PKG $OUTPUT
cd $TMP
rm -rf $PRGNAM-$VERSION
tar xvf $CWD/$PRGNAM-$VERSION.tar.gz
cd $PRGNAM-$VERSION

chown -R root:root .
find -L . \
 \( -perm 777 -o -perm 775 -o -perm 750 -o -perm 711 -o -perm 555 \
  -o -perm 511 \) -exec chmod 755 {} \; -o \
 \( -perm 666 -o -perm 664 -o -perm 640 -o -perm 600 -o -perm 444 \
  -o -perm 440 -o -perm 400 \) -exec chmod 644 {} \;


if [ "${STARPU:-no}" == "yes" ]; then
  OPT_BUILD="-DCHAMELEON_SCHED=STARPU"
else
  OPT_BUILD="-DCHAMELEON_SCHED=OPENMP"
fi

if [ "${MPI:-no}" == "yes" ]; then
  OPT_BUILD="$OPT_BUILD -DCHAMELEON_USE_MPI=ON"
fi

###########
# runtime fixes
###########

# fix for the pkgconfig files and "hqr_env.sh" to use 
# the right library path
sed -i 's#/lib#/lib'${LIBDIRSUFFIX}'#' \
	lib/pkgconfig/{chameleon,coreblas,cudablas}.pc.in \
	hqr/lib/pkgconfig/hqr.pc.in hqr/hqr_env.sh.in

###########
# installation fixes
###########

# fix the installation of some files that was
# been installed to /usr/bin
sed -i 's# bin # share/libexec/chameleon #' hqr/testings/CMakeLists.txt
sed -i 's# DESTINATION bin/chameleon# DESTINATION share/chameleon/examples#' example/lapack_to_chameleon/CMakeLists.txt
sed -i 's# DESTINATION bin# DESTINATION share/libexec/chameleon#' hqr/cmake_modules/GenHQRPkgConfig.cmake

# fix lib installation path
sed -i 's#DESTINATION lib#&'${LIBDIRSUFFIX}'#' \
	runtime/{openmp,starpu,parsec,quark}/CMakeLists.txt \
	compute/CMakeLists.txt \
	{coreblas,cudablas}/compute/CMakeLists.txt \
	hqr/src/CMakeLists.txt

# fix installation of pkgfiles to lib${LIBDIRSUFFIX}
sed -i 's#DESTINATION lib#&'${LIBDIRSUFFIX}'#' \
	cmake_modules/GenPkgConfig.cmake \
        hqr/cmake_modules/GenHQRPkgConfig.cmake


mkdir -p build
cd build
  cmake \
    -DCMAKE_C_FLAGS:STRING="$SLKCFLAGS" \
    -DCMAKE_CXX_FLAGS:STRING="$SLKCFLAGS" \
    -DCMAKE_INSTALL_PREFIX=/usr \
    -DLIB_INSTALL_DIR=lib${LIBDIRSUFFIX} \
    -DBIN_INSTALL_DIR=libexec/$PRGNAM \
    -DBUILD_SHARED_LIBS=ON \
    $OPT_BUILD \
    -DCMAKE_BUILD_TYPE=Release ..
  make
  make install/strip DESTDIR=$PKG
cd ..


# Don't ship .la files:
rm -f $PKG/{,usr/}lib${LIBDIRSUFFIX}/*.la

find $PKG -print0 | xargs -0 file | grep -e "executable" -e "shared object" | grep ELF \
  | cut -f 1 -d : | xargs strip --strip-unneeded 2> /dev/null || true

mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
cp -a CONTRIBUTING.org LICENCE.txt \
       	$PKG/usr/doc/$PRGNAM-$VERSION
cat $CWD/$PRGNAM.SlackBuild > $PKG/usr/doc/$PRGNAM-$VERSION/$PRGNAM.SlackBuild

mkdir -p $PKG/install
cat $CWD/slack-desc > $PKG/install/slack-desc

cd $PKG
/sbin/makepkg -l y -c n $OUTPUT/$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.$PKGTYPE
